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α: calibrated so average coauthorship-adjusted count equals average raw count
Considering the increasing attention on efficient use of energy, it becomes vitally important to understand the energy-related behavior of households. This article presents empirical evidence on the determinants of the space heating technology applied by a household. Three sets of variables are examined as potential influences--building, socio-economic, and regional characteristics. To highlight both the differences and similarities, the results are obtained from a sample of house owners, and from a sample including all households. The influence of socio-economic factors is similar across these groups. Income is found to exert only a minor impact on the system choice. Dwelling features are significant in determining the heating type, particularly in the sample including all households. Regional effects are important--clear differences prevail between East and West Germany.